Compressor



A. ROSZKOWSKI.

COMPRESSOR.

APPLlCATION FILED FEB. 9, 1920.

Anonr Roszxowsxi, or New YORK, iv. Y., l

i .rl-fi V- v" 'l titmSUE Patented July 5, 192i.

COMPRESSOR.

assenso.

Application filed February 9, 1920. Serial No. 357,485.

T0 all whom it may concern:

` Be it known that I, AnoLi` Rosziiowsxi, a subject of Russia, residing at 206 Broadway, New York, in the county of New York and State of New York, have invented certain new and useful improvements in Compressors, of which the following is a specification.

This invention relates to an improvement in automatic air compressor apparatus, designed particularly for use with an improved compressed air supply system for railroad stations forming the subject matter of Patent No. 1,240,37 3 issued to me September 18, 1917.

Briefiy, such system comprises reservoirs containing water and compressed air located beneath the surface of the ground at the water station, the reservoirs being connected with each other, with a more or less remote pump station for the supply of water and air to such reservoirs, and with a standpipe outlet from which the water is withdrawn for use. A particular valve arrangement between the reservoirs, supply and service pipes renders the system self distributing and self regulating. l

The system contemplates the continued 'use of the compressed air of the reservoirs, that is the use of such air as a motive force for the water to a low limit of pressure of such air and the restoration of the maximum air pressure through an additional supply of water from the pump station.

In the practical use of such system, however, it has been found that there is a distinct but slow dissolution of the compressed air in the water, and as such is lost for effective uses, it must be compensated for, preferably byureplacement.

The present invention is designed to provide an apparatus for the automatic replacement'of such dissolved or absorbed portion of the compressed air, and in more specific detail comprises two comparatively small tanks, preferably located at or near the pump station of the system and on a level below that of the reservoirs. Two-way valves, connected for simultaneous but reverse action, are provided, either serving to connect a particular tank with the water pipe from the reservoir and air pipe thereto, while the other at the same time connects the other tank, at both inlet and outlet with the atmosphere. The reservoir connected tank, which by a previous position of the valve has been connected with the atmosphere and is therefore filled with air under atmospheric pressure, is subjected to the pressure of the water from the reservoirs, under the head incident tothe difference in level, and the contained air forced into the system. 'lhe other tank, which in the previous position of the valves has gradually filled with water vfrom the reservoirs in forcing the air therefrom into the system, is in the present position of the valves, open to the atmosphere, draining it of water and, of course, filling it` with air under atmosphericpressure to be forced into the system when the valves are reversed.

In the drawings:

Figure 1l .is a view illustrating more or less diagrammatically the improved compressor apparatus.

Fig. is a section of the valve.

The improved construction comprises two tanks, 1 and 2, preferably located near the pump station/of the improved system, and on a level below the service reservoirs of such system to provide a head of water from the service reservoirs to the tanks through the pipe 3, leading from such service reservoirs.

An air supply pipe 4 leads to the air pressure pipe for-serving the reservoirs, and this pipe has a valve 5 which opens toward the reservoirs.

Tank 1 has an air pipe 6 opening therefrom near the top with a water excluding valve 7 at the entrant end thereof, andalso a water pipe 8 opening therefrom near the bottom; while tank 2 has exactly similar pipe arrangement, that is air pipe 9, with valve 10, and water pipe 11. f Control valves 12 and 13 are provided for the compressor, these valves each having two non-communication passages 14 and 15. The valves are connected, as by a rod or other appropriate means 16, whereby such valves are simultaneously operated, but with the parts thereof relatively reversed under all working conditions.

The respective valve casings 17 and 18, are each provided with a port 19, *leading to the atmosphere, the casing 17 of valve 12 having ports 20and 21 for the connection thereto of the air pipes 6 and' 9 of the respectivetanks, and another port 22 for the connection of the air supply pipe 4. The caseok ing 18 of valve 13 has similar ports, that Vis ports 28, 24-4 ior connection or' the respective water pipes S and ll oit the tanks l and 2, and' a' port25 to which the pipe 3 is connected.. If :Y i

The passages' 'i4 andrl of the valves are so relatively disposed-that in one position for example that illustrated in the drawings, the and water pipes of tank l are open to the atmosphere, and hence this tank is chargedl with air under atmospheric pressure. rihe air and water aipes o tank y2, however, are in this position of the valves connected with the water pipe 3 and air snpply pipe t o' the system. The water under the head described, will torce the air from tank 2 into the system to replenish the ahsorhed air. ihen tank 2 has become substantially tilted with water, as may he indicated as an external. gage 26, the valves are operated by means 1G to reverso them, utilizing; tank l as the service tank, and opening tank 2 to tho atmosphere for drainage of the ,water there'lirom and replacement ofi such water with air 'for charging purposes on the next operation or the valves.

Beyond the more change oi the valve the compressor apparatus is entirely automatic in its operation, and will eiiectiyely maintain a constant air volume in the system,

Claims: l. An air compressor for water systems using,` compressed air as a mot-ive power, comprising two tanks, arranged to have a water head from the system, and means for simultaneously connecting' one tank with such water head and compressed air service oi snch system and the other tank with the atmosphere.

2. An air compressor for water systems usinp,` compressed as a motive power, comprisinn,` two tanks, arranged to have a water head from the system, and means for simuitancousiy connecting' one ank with such water head and compressed air service of such system and the other tank with the atmosphere, said means being` reversible with respect to the tanks at will. o. .An air compressor 'for water systems rising` compressed air as a motive power, comprising1 two tanks, arrangef to have a water head from the system, a valve for connecting` each tank either with the water head from the system and the compressed air service, or with the atmosphere at will.

e. An air compressor Jfor water systems using'compressed air as a motive power, comprising two tanks, arranged to have a water head from the system, a valve for connecting each tank either with the water head from the system and the compressed .air service, or with the atmosphere at will, and means for simi-iiltaneously and reversely operating said valves with respect to the tanks.

5. An air compressor for water systems using compressed air as a motive power, two tanks arranged below the system to provide a water head therefrom, a water pipe leading; from the system, a compressed air pipe leading,` to the compressed air service of the system, an air pipe ieading, from'the top of each tanlga water pipe leading from the hottom of each tank, and a two way valve for each tank, one ot said valves having` passages adapted in the operation of the yalve to connect the air pipe of one tank with the system compressed air pipe and the air pipe of the other tank with the atmosphere, the other of said valves having' passages to correct the water pipe oit one tank with the system water pipe and the water pipe of' the other tank with the atmosphere.

6, An air compressor for water systems using compressed air as a motive power, two tanks arranged below the system to provide a water head therefrom, a water pipe leading Ytrom the system, compressed air pipe leadim; to th compressed air service ot' the system, an air pipe 1reading` from the t'ops of each tank, a water pipe leading, from the hottom of cach tank, and two way valve 'for ach tank, one of said valves having pasiges adapt in the operation of the valve -o connect 1die air pipe of one tank with the System compressed airl pipe and the air pipe the other tank with the atmosphere, the ier or" said valves having' passages to connect the water pipe ot one tank with the system water pipe and the water pipe of the other tank with the at1nospaere,'and means to connect the valves for simultaneous operation to connect one tankpin the system wh il opening the other to the atmosphere.

in testimony whereof l atiix m sio'naturc.

anota noszirowtskr.

CD O 

